Hume AI is an Emotion & Prosody Models company founded in 2021 and based in New York, United States. It has raised $62.7M in total funding, most recently a Series B in 2024.
| Date | Stage | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Mar 1, 2024 | Series B | $50M | — | EQT Ventures |
| Jan 1, 2023 | Series A | $12.7M | — | Union Square Ventures |
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A speech-to-speech API that detects emotional valence, arousal, and vocal prosody in real time and generates responses with contextually matched tone. EVI 3 (May 2025) delivers sub-300ms response latency with access to 100K+ custom voices. EVI 4-mini (January 2026) adds multilingual support across 11 languages including Japanese, Korean, Spanish, French, and Arabic. Works alongside Claude, GPT, Gemini, and Llama as the emotional tuning layer on top of existing LLMs. Used by 100K+ developers and businesses as of November 2025.